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Start Over Author "Mingkun Xie" Journal forensic sciences research
2 results on '"Mingkun Xie"'

1. Population genetics and forensic efficiency of 30 InDel markers in four Chinese ethnic groups residing in Sichuan

Author

Fei Wang, Guanglin He, Zheng Wang, Mengge Wang, Jing Liu, Xing Zou, Shouyu Wang, Mengyuan Song, Ziwei Ye, Mingkun Xie, and Yiping Hou

Subjects
forensic sciences, indel, population genetics, sichuan han, sichuan yi, sichuan tibetan, sichuan hui, Criminal law and procedure, K5000-5582, Public aspects of medicine, RA1-1270
Abstract

Sichuan Province is located at the transitional junction regions of the Qinghai-Tibet Plateau and the low-altitude plains. It also serves as the corridor of Sino-Tibetan-speaking population migration and expansion since neolithic expansion of Proto-Tibeto-Burman populations from Middle/Upper Yellow River during Majiayao period (3300–2000 BC). However, the population structure and the corresponding genetic diversity of forensic-related markers in this region remain unclear. Thus, we genotyped 30 insertion-deletion (InDel) markers in 444 samples from four ethnic groups (Han, Tibetan, Hui and Yi) from Sichuan Province using the Investigator® DIPplex kit to explore the characteristics of population genetics and forensic genetic focuses. All the loci were found to be in Hardy-Weinberg Equilibrium (HWE) after applying a Bonferroni correction and no pairwise loci showed prominent linkage disequilibrium. The combined matching probability (CMP) and the combined power of discrimination (CPD) are larger than 1.8089 × 10−11 and 0.99999999995, respectively. Principal component analysis, Multi-Dimensional Scaling Plots and Neighbour-Joining tree among 65 worldwide populations indicated that Sichuan Hui and Han are genetically close to Hmong-Mien and Tai-Kadai-speaking populations, and Sichuan Tibetan and Yi bear a strong genetic affinity with Tibeto-Burman-speaking populations. The model-based genetic structure further supports the genetic affinity between the studied populations and linguistically close populations.Key Points Forensic parameters of 30 insertion-deletions (InDels) in 444 individuals from four populations are reported, which showed abundant genetic affinity and diversity among populations and high value in personal identification. Genetic similarities existed between the studied populations and ethnically, linguistically close populations. Sichuan Hui and Han are genetically close to Hmong-Mien and Tai-Kadai-speaking populations. Sichuan Tibetan and Yi bear a strong genetic affinity with Tibeto-Burman-speaking populations.

Published
2020
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2. Population genetics and forensic efficiency of 30 InDel markers in four Chinese ethnic groups residing in Sichuan

Author

Mengyuan Song, Yiping Hou, Guanglin He, Ziwei Ye, Mingkun Xie, Mengge Wang, Zheng Wang, Fei Wang, Jing Liu, Xing Zou, and Shouyu Wang

Subjects
forensic sciences, sichuan yi, Population, Ethnic group, Population genetics, Biochemistry, Genetics and Molecular Biology (miscellaneous), Pathology and Forensic Medicine, Analytical Chemistry, sichuan hui, Physical and Theoretical Chemistry, lcsh:K5000-5582, education, Indel, education.field_of_study, Plateau, geography.geographical_feature_category, lcsh:Public aspects of medicine, population genetics, lcsh:RA1-1270, sichuan tibetan, Forensic science, Psychiatry and Mental health, Geography, sichuan han, indel, Anthropology, lcsh:Criminal law and procedure, Demography
Abstract

Sichuan Province is located at the transitional junction regions of the Qinghai-Tibet Plateau and the low-altitude plains. It also serves as the corridor of Sino-Tibetan-speaking population migration and expansion since neolithic expansion of Proto-Tibeto-Burman populations from Middle/Upper Yellow River during Majiayao period (3300–2000 BC). However, the population structure and the corresponding genetic diversity of forensic-related markers in this region remain unclear. Thus, we genotyped 30 insertion-deletion (InDel) markers in 444 samples from four ethnic groups (Han, Tibetan, Hui and Yi) from Sichuan Province using the Investigator® DIPplex kit to explore the characteristics of population genetics and forensic genetic focuses. All the loci were found to be in Hardy-Weinberg Equilibrium (HWE) after applying a Bonferroni correction and no pairwise loci showed prominent linkage disequilibrium. The combined matching probability (CMP) and the combined power of discrimination (CPD) are larger than 1.8089 × 10−11 and 0.99999999995, respectively. Principal component analysis, multi-dimensional scaling plots and Neighbour-Joining tree among 65 worldwide populations indicated that Sichuan Hui and Han are genetically close to Hmong-Mien and Tai-Kadai-speaking populations, and Sichuan Tibetan and Yi bear a strong genetic affinity with Tibeto-Burman-speaking populations. The model-based genetic structure further supports the genetic affinity between the studied populations and linguistically close populations. Key PointsForensic parameters of 30 insertion-deletions (InDels) in 444 individuals from four populations are reported, which showed abundant genetic affinity and diversity among populations and high value in personal identification.Genetic similarities existed between the studied populations and ethnically, linguistically close populations.Sichuan Hui and Han are genetically close to Hmong-Mien and Tai-Kadai-speaking populations.Sichuan Tibetan and Yi bear a strong genetic affinity with Tibeto-Burman-speaking populations.

Published
2020

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